A connecting device for connecting to an electrical connection system of a solar module includes a connector housing to be arranged on an outer surface of the solar module and also at least one conductor component, which is arranged in the connector housing. At least one connection mechanism is provided with connecting device, and formed for connecting to a conductor, which is led out of the solar module, of the electrical connection system of the solar module. The connection mechanism has at least one resilient contact region, which is embodied for contacting the led-out conductor in a contacting position, the connection mechanism also includes at least one engagement portion, which is embodied for engaging a tool in order to move the resilient contact region out of its contacting position. This allows the connector housing to be attached to the connector housing in a largely automated manner and to be connected to a led-out conductor of the connection system.